On Friday, April 21, Universal Studios Japan will officially open the Expecto Patronum Night Show, which uses advanced video projection to bring Hogwarts Castle in The Wizarding World of Harry Potter to life.

The Expecto Patronum Night Show is a large-scale night show in The Wizarding World of Harry Potter, featuring chilling Dementors, brave students and defensive spells. During the night show, students at Hogwarts School of Witchcraft and Wizardry cast spells that illuminate Hogwarts Castle and the foggy Black Lake, and banish the soul-sucking Dementors that have descended.

Olympian Saori Yoshida, who attended a preview of the show with fans and press on April 18, said, “I was so moved to actually see a patronus. The Dementors made me so scared. It is absolutely the world’s best experience.” You can watch the full preview performance here:

The new Night Show at Universal Studios Japan debuts a few months before Universal Orlando’s Islands of Adventure gets its own evening projection show on Hogwarts Castle to celebrate the holiday season. A projection show for Universal Studios Hollywood has also been rumored, though it has not yet been officially announced. For an idea of what the show could look like, watch this video from last summer’s grand opening of Hogsmeade at Universal Studios Hollywood: